I agree with many of the points here and strongly disagree with others.
FIRST AK is NOT too weak to go AI with in a tournament, especially early...against a SS you are mostly going to be favored or flipping, which is ok
To fold because it is too early in a tournament is foolish and should never enter the equation...if this is your mindset then quit playing altogether
Folding here does show fear, and will make the smarter players chew you up in the end, not good. Bet less PF is better if you are just going to fold to aggression.
You do need to think about it from the get...what was your motivation? Whenever there is a short stack at the table, you must ALWAYS be prepared for that stack to shove at any time. If you are going to 4x you must be prepared to call that short stacks shove, if you will not do this then you should just fold preflop, or limp, which is stupid anyways. Remember the short stacks range will be VERY WIDE, and your AK has him beat 90% of the time or more, and with the other player not raising you can assume he is not that strong either.